Автор: Kevin Gale
Год: 1989
Издатели: Your Sinclair
Языки:
Английский
Формат:
TAP лента
Требования:
ZX Spectrum 48K
Ссылки:
Страница на ZXArt
Страница на World Of Spectrum
Страница на Spectrum Computing
Скриншоты:
Год: 1989
Издатели: Your Sinclair
Языки:
АнглийскийФормат:
TAP лентаТребования:
ZX Spectrum 48KСсылки:
Страница на ZXArt Страница на World Of Spectrum Страница на Spectrum ComputingСкриншоты:
ALCATRAZ EMULATOR
by Kevin Gale
The Alcatraz loading system, apart from being fairly notorious in
Spectrum circles, is also the bane of all hackers. But more
importantly it uses an original screen build up routine while it
loads. And this is the part Kevin Gale has emulated in this, his
sensational program.
Method
I'm not even going to make a comment on how easy this program is to
use. [Sigh. Well, don't, then. JimG] Simply type in the listing, SAVE
it, and then RUN it. Now what's difficult about that? [There are
actually two listings, and the second one has to be entered first, as
it sets up the machine code and loads the main program. JimG]
The Features
(i) LOAD SCREEN
Select this option to load a normal screen picture from
tape or Opus disk.
(ii) EDIT SCREEN
Select this option to design the way the screen loads.
Your cursor is shown as a flashing square which can
be moved around with the cursor keys. To select a
square use 0: to unselect a square use 9. [The "unselect"
option doesn't work. Compare lines 27/28. JimG] When your
creativity is exhausted use Symbol Shift and M. Clear
the screen with Symbol Shift and 1.
(iii) SAVE DATA
Select this option to save the screen data to tape or
Opus disk; this is useful if you have not finished your
loader design. Three pieces of data are saved, totalling
23810 bytes.
(iv) SAVE SCREEN
When you've completed your design you can save it
to tape for use in your own programs. This option can
only be selected when the picture is complete. The
picture is saved as a headerless file, 9984 bytes long.
[I couldn't get this option to work either. It's not clear
how the program decides that the picture is "complete". JimG]
(v) SAVE LOADER
Use this option to save copy of the loader. It can be
saved to any memory address from 23296-65441.
The loader is 95 bytes long.
(vi) WATCH SCREEN
An option for all the voyeurs. You can view your toil as the
program pretends the screen is loading.
(vii) DEMO DATA
This creates a demonstration loading pattern to impress you.
[There's an 8th option "LOAD DATA" which McCandless didn't bother to
explain. JimG]
by Kevin Gale
The Alcatraz loading system, apart from being fairly notorious in
Spectrum circles, is also the bane of all hackers. But more
importantly it uses an original screen build up routine while it
loads. And this is the part Kevin Gale has emulated in this, his
sensational program.
Method
I'm not even going to make a comment on how easy this program is to
use. [Sigh. Well, don't, then. JimG] Simply type in the listing, SAVE
it, and then RUN it. Now what's difficult about that? [There are
actually two listings, and the second one has to be entered first, as
it sets up the machine code and loads the main program. JimG]
The Features
(i) LOAD SCREEN
Select this option to load a normal screen picture from
tape or Opus disk.
(ii) EDIT SCREEN
Select this option to design the way the screen loads.
Your cursor is shown as a flashing square which can
be moved around with the cursor keys. To select a
square use 0: to unselect a square use 9. [The "unselect"
option doesn't work. Compare lines 27/28. JimG] When your
creativity is exhausted use Symbol Shift and M. Clear
the screen with Symbol Shift and 1.
(iii) SAVE DATA
Select this option to save the screen data to tape or
Opus disk; this is useful if you have not finished your
loader design. Three pieces of data are saved, totalling
23810 bytes.
(iv) SAVE SCREEN
When you've completed your design you can save it
to tape for use in your own programs. This option can
only be selected when the picture is complete. The
picture is saved as a headerless file, 9984 bytes long.
[I couldn't get this option to work either. It's not clear
how the program decides that the picture is "complete". JimG]
(v) SAVE LOADER
Use this option to save copy of the loader. It can be
saved to any memory address from 23296-65441.
The loader is 95 bytes long.
(vi) WATCH SCREEN
An option for all the voyeurs. You can view your toil as the
program pretends the screen is loading.
(vii) DEMO DATA
This creates a demonstration loading pattern to impress you.
[There's an 8th option "LOAD DATA" which McCandless didn't bother to
explain. JimG]